|Weathering and decay - Forest Products Laboratory|
|Weathering and decay - Forest Products Laboratory|
|Physical aging behavior in glassy polymers - polystyrene and a miscible blend - Liburd, Bernard A.|
|Comparative decay resistance of heartwood of different native species when used under conditions that favor decay - Forest Products Laboratory|
|Racial decay, a compilation of evidence from world sources - Beale, Octavius Charles|
Keywords: Race deterioration
|Race decadence, an examination of the causes of racial degeneracy in the United States - Sadler, William Samuel, 1875-|
Keywords: Race deterioration
|Deterioration of eggs as shown by changes in the moisture content (Volume no.83) - Greenlee, A. D. (Arden Dean)|
Keywords: Eggs Deterioration
|An application of growth curve analysis to the ammunition stockpile deterioration model - Sohn, So Young.|
Keywords: AMMUNITION; DETERIORATION; MAINTENANCE
|Comparative decay resistance of heartwood of different native species when used under conditions that favor decay - Forest Products Laboratory (U.S.|
Keywords: Heartwood--Deterioration; Heartwood--Microbiology
|The Deterioration of cotton fabric by certain micro-organisms (Volume no.737) - Klemme, Dorothea E. (Dorothea Elizabeth), 1906-|
Keywords: Cotton fabrics Deterioration
|Powder-post injury to seasoned wood products (Volume ser.2:no.55) - Hopkins, A. D. (Andrew Delmar), 1857-1948|
Keywords: Lyctidae; Wood Deterioration
|Comparative durability of green and seasoned timber - Forest Products Laboratory|
Keywords: Lumber--Quality; Lumber--Deterioration
|Decadence - Balfour, Arthur James Balfour, Earl of, 1848-1930|
Keywords: Progress; Race deterioration; Nationalism
|How to determine seasoning degrade losses in sawmill lumberyards (Volume no.32) - Cuppett, Donald G|
Includes bibliographical references (p. 7)
Keywords: Lumber-yards Management; Lumber Storage; Lumber Deterioration; Wood Deterioration
|Rate of deterioration of fire-killed timber in California (Volume no.962) - Kimmey, James W. (James William), 1907-|
Keywords: Forest fires California; Wood Deterioration
|Interactive roles regulating wood accumulation and soil development in the northern Rocky Mountains (Volume no.263) - Harvey, A. E|
Keywords: Forest soils; Wildfires; Wood Deterioration
|Summary of current research on archival microfilm (Volume NBS Technical Note 261) - McCamy, C. S.; Pope, C.I.|
The discovery of aging blemishes on microfilm in storage has prompted a study of the statistical relationship of incidence to conditions of preparation and storage, the chemical and physical nature of the blemishes, and measures to be taken to prevent the
Keywords: Documents on microfilm; Microfilms--Deterioration
|Reliability of a system in which spare parts deteriorate in storage (Volume 66B) - Weiss, George H.|
Journal of Research of the National Bureau of Standards
Keywords: Deterioration; Poisson law; spare parts; storage
|Greenheart, a timber with exceptional qualities - Forest Products Laboratory (U.S.|
Keywords: Wood--Varieties; Wood--Deterioration; Marine borers
|Fungi associated with principal decays in wood products in the United States (Volume no.4) - Duncan, Catherine G., 1908-|
Keywords: Wood-decaying fungi; Wood Deterioration; Basidiomycetes
|The oxygen deficiency test - Principles and relationships to regulative processes in the organism - Bruner, H.|
Principles and relationships to regulative processes in humans - oxygen deficiency tests
Keywords: DETERIORATION; HUMAN BEINGS; HYPOXIA; ORGANISMS; RESPIRATION; HUMAN; OXYGEN DEFICIENCY; REGULATION
|PharohsHouse Podcast for 9-13-11 - PharohsHouse.com|
In this podcast Pharoh provides answers to an unanswered podcast question, shows you how to meditate deeply for complete relaxation, lists a few foods to avoid that deteriorate the body, provides original insight on liver function, liver care, numbers for the liver and holistic health tips for liver a liver cleansing drink and also answers email from listeners.
Keywords: liver; cleanse; body; meditation; ancestry; holistic; ginger; cayenne; deterioration
|Bread staling : effects of fats, surfactants, storage time and storage temperature, and the interaction between these factors - Cole, Frank Arthur.|
This volume was digitized and made accessible online due to deterioration of the original print copy.
Keywords: Bread--Storage; Bread--Preservation; Oils and fats, Edible--Deterioration
|Estimation of decay in old-growth western hemlock and Sitka spruce in southeast Alaska (Volume no.204) - Farr, Wilbur A. cn|
Keywords: Western hemlock Alaska; Sitka spruce Alaska; Wood Deterioration
|Analysis of images obtained by the Phobos 2 spacecraft - Irvine, W. M|
The reflection spectrum and density of the Martian satellite, Phobos, suggests that it may be a captured C-type asteroid and hence may contain relatively unaltered organic material from the early history of the solar system. Since there is evidence from isotopic anomalies that meteorites presumably derived from such asteroids contain preserved interstellar material, it is conceivable that evidence for interstellar matter might also be present on Phobos...
Keywords: ANTARCTIC REGIONS; ECOSYSTEMS; WATER; BIOLOGICAL EVOLUTION; ENVIRONMENT MODELS; EXOBIOLOGY; EXTINCTION; MARS (PLANET); MARS ENVIRONMENT; MICROORGANISMS; DETERIORATION
|Cooperative research in terrestrial planetary geology and geophysics - NON|
This final report for the period of July 1991 to August 1994 covered a variety of topics concerning the study of Earth and Mars. The Earth studies stressed the interpretation of the MAGSAT crustal magnetic anomalies in order to determine the geological structure, mineralogical composition, magnetic nature, and the historical background of submarine features, and also featured work in the area of terrestrial remote sensing...
Keywords: ACTUATORS; COMPUTER PROGRAMMING; CONTROLLERS; MULTIVARIABLE CONTROL; REDUNDANCY; SATURATION; COMPUTER SYSTEMS PERFORMANCE; DETERIORATION; EFFECTORS
|Cull factors for Sitka spruce, western hemlock, and western redcedar in southeast Alaska (Volume no.6) - Kimmey, James W. (James William), 1907-|
Keywords: Wood Defects Alaska, Southeast; Wood Deterioration Alaska, Southeast; Forests and forestry Alaska, Southeast Measurement
|The New Jettison Policy for the International Space Station - Johnson, Nicholas L|
During more than seven years of operations by the International Space Station (ISS), approximately three dozen pieces of debris were released and subsequently cataloged by the U.S. Space Surveillance Network (SSN). The individual mass of these objects ranged from less than 1 kg to 70 kg. Although some of these debris were separated from the ISS accidentally, some were intentionally cast-off, especially the larger items...
Keywords: REUSABLE LAUNCH VEHICLES; RELIABILITY; PAYLOADS; MAINTENANCE; LAUNCHING; LAUNCH VEHICLES; HEAT SHIELDING; LAUNCH COSTS; DETERIORATION; CONSTRUCTION
|Occurrence of calcium oxalate and oxalate-utilizing bacteria in Echinodontium tinctorium decay zones in Abies concolor (Volume no.328)|
Issued Mar. 1979
Keywords: Calcium oxalate; Fir; Indian paint fungus; Wood Deterioration; Calcium oxalate; Fir; Indian paint fungus; Wood
|Propulsion Research and Technology: Overview - Cole, John|
Propulsion is unique in being the main delimiter on how far and how fast one can travel in space. It is the lack of truly economical high-performance propulsion systems that continues to limit and restrict the extent of human endeavors in space. Therefore the goal of propulsion research is to conceive and investigate new, revolutionary propulsion concepts. This presentation reviews the development of new propulsion concepts...
Keywords: RATS; COMPARTMENTS; KINEMATICS; SPACE SHUTTLES; PAYLOADS; MODULES; MAMMALS; ENVIRONMENT SIMULATORS; EMBRYOLOGY; CREWS; DETERIORATION
|Study of age deterioration of gasket materials installed in simulated launch vehicle hardware semiannual technical report - Samuel, J. A|
Aging of gasket materials installed as simulated launch vehicle hardware
Keywords: AGING (MATERIALS); DETERIORATION; GASKETS; LAUNCH VEHICLES; LEAKAGE; O RING SEALS; AGING; GASKET
|Chemical Characterization and Thermal Stressing Studies of Perfluorohexane Fluids for Space-Based Applications - Arnold, William A.|
Perfluorohexane (PFH), C6F14, is a perfluorocarbon fluid. Several PFH fluids with different isomer concentrations were evaluated for use in an upcoming NASA space experiment. Samples tested included two commercially obtained high-purity n-perfluorohexane (n-PFH) fluids and a technical grade mixture of C6F14 branched and linear isomers (FC-72(TradeMark)). These fluids were evaluated for exact chemical composition, impurity purity and high temperature degradation behavior (pyrolysis)...
Keywords: AEROSPACE ENGINEERING; ADAPTIVE CONTROL; BAYES THEOREM; FLIGHT CONTROL; NEURAL NETS; SUPPORT SYSTEMS; SIMULATION; DETERIORATION
|A Primer In Advanced Fatigue Life Prediction Methods - Halford, Gary R|
Metal fatigue has plagued structural components for centuries, and it remains a critical durability issue in today's aerospace hardware. This is true despite vastly improved and advanced materials, increased mechanistic understanding, and development of accurate structural analysis and advanced fatigue life prediction tools. Each advance is quickly taken advantage of to produce safer, more reliable more cost effective, and better performing products...
Keywords: BIAS; IMPEDANCE; INTERNAL FLOW; ORIFICES; PERFORATED PLATES; REACTANCE; DETERIORATION; SLOPES; MATHEMATICAL MODELS
|Freezing decayed wood to facilitate ring counts and width measurements (Volume no.187) - Herman, Francis R|
Keywords: Tree-rings Cascade Range; Forests and forestry Measurement; Wood Deterioration; Tree-rings; Forests and forestry; Wood
|Prevention and control of decay in dwellings - Forest Products Laboratory|
Keywords: Wood--Deterioration--Prevention; Wood--Preservation; Wood-decaying fungi--Control; Dwellings--Maintenance and repair
|TFR789 - HYDROPNEUMOTHORAX - SIGNIFICANT DETERIORATION (EP) - HYDROPNEUMOTHORAX|
HYDROPNEUMOTHORAX - SIGNIFICANT DETERIORATION (EP) 01 - Taking over the airwaves 02 - Snuff is never enough 03 - Chronic boli-boli 04 - ...A brief interlude... 05 - Theory of life 06 - Conversing with a corpse Hydropneumothorax is Eric P - All Guitars, Bass, Vomiting, Dry-reaching & Programming www.facebook.com/hydropneumothorax Parasiticlarvae@hotmail.com DOWNLOAD NOW Tracks recorded in August 2013 & mixed on the same dates...
Keywords: HYDROPNEUMOTHORAX; SIGNIFICANT; DETERIORATION; EP; Pathological; Goregrind; grindcore; Punk; Death; Metal; Torn; Flesh; Records
|2nd set w/ Blair Jackson....|
The Jake Feinberg Show
Keywords: Ghadafi (He's Gone); physical deterioration; Conversations with the Dead; 1981; Feel Like a Stranger; Grateful Dead 2012
|A High Order Finite Difference Scheme with Sharp Shock Resolution for the Euler Equations - Gerritsen, Margot|
We derive a high-order finite difference scheme for the Euler equations that satisfies a semi-discrete energy estimate, and present an efficient strategy for the treatment of discontinuities that leads to sharp shock resolution. The formulation of the semi-discrete energy estimate is based on a symmetrization of the Euler equations that preserves the homogeneity of the flux vector, a canonical splitting of the flux derivative vector, and the use of difference operators that satisfy a discrete an...
Keywords: CERAMIC MATRIX COMPOSITES; P WAVES; PULSED LASERS; S WAVES; ULTRASONIC WAVE TRANSDUCERS; NONDESTRUCTIVE TESTS; ULTRASONICS; DAMAGE; POROSITY; DETERIORATION
|Correlation Between Low Frequency Auroral Kilometric Radiation (AKR) and Auroral Structures - Paxamickas, Katherine A.|
Auroral Kilometric Radiation (AKR) is a radio wave emission that has long been associated with auroral activity. AKR is normally observed in the frequency range from -60 - 600 kHz. Low frequency AKR (or LF-AKR) events are characterized as a rapid extension of AKR related emissions to 30 kHz or lower in frequency for typically much less than 10 minutes. LF-AKR emissions predominantly occur within a frequency range of 20 kHz - 30 kHz, but there are LF-AKR related emissions that reach to a frequenc...
Keywords: MICROORGANISMS; DETERIORATION; MICROBIOLOGY; INTERNATIONAL SPACE STATION; FLOW VELOCITY; FLUID FLOW; ACTIVE CONTROL; TEMPERATURE CONTROL; METAL SURFACES; HEAT TRANSFER
|New Outer Blanket Layer (NOBL) Installation EVA Animation - NASA/Goddard Space Flight Center|
A NOBL consists of stainless steel panels covered with a protective Multi-Layer Insulation (MLI) thermal coating. These panels fit over existing, degraded insulation on Hubble's exterior surface, to control Hubble's internal temperature. The NOBL will be permanently mounted. Note: An animation showing the removal of degraded Multi-Layer Insulation (MLI) from the Hubble Space Telescope's Bay 8 and the installation of a New Outer Blanket Layer (NOBL) on the Bay 8 door during Hubble Space Telescope...
Keywords: Spacecraft, Hubble Space Telescope, HST, SM4, Servicing Mission 4, EVA, Astronaut, STS-125, New Outer Blanket Layer, MLI, Deterioration; What -- Hubble Space Telescope (HST); What -- STS-125
|Getting to the Point in Pinpoint Landing - NON|
Assisted by Langley Research Center's Small Business Technology Transfer (STTR) Program, IntegriNautics has developed a commercialized precision landing system. The idea finds its origins in Stanford University work on a satellite test of Einstein's General Theory of Relativity, where Stanford has designed a new high-performance altitude-determining hardware.
Keywords: ABRASION RESISTANCE; DETERIORATION; DURABILITY; FIXTURES; FLUID FLOW; GOLD; HUMIDITY; NICKEL; PIPELINES; STAINLESS STEELS; TITANIUM; CLEANING; COATING; WEAR; WOOL; ABRASIVES; BRASSES; CHROMIUM; COPPER
|Nonpotential magnetic fields at sites of gamma ray flares - Hagyard, M. J.|
The relation between the degree of nonpotentiality of photospheric magnetic fields and the occurrence of gamma ray flares is examined. The parameter delta phi (magnetic shear) and the strength of the magnetic field intensity are used as measures of the degree of nonpotentiality, where delta phi is defined as the angular difference between the observed direction of the transverse component of the photospheric field and the direction of the potential field prescribed by the distribution of measure...
Keywords: AEROSPACE ENVIRONMENTS; NERVES; PHYSICAL EXERCISE; RATS; SPACE FLIGHT; ADENOSINE TRIPHOSPHATE; CONFINEMENT; DETERIORATION; ENZYME ACTIVITY; MAINTENANCE; MITOCHONDRIA; ATROPHY; BIOCHEMISTRY; CHEMICAL ANALYSIS; DEGENERATION; EDEMA; GRAVITATIONAL PHYSIOLOGY; MORPHOLOGY; MUSCLES
|Knowledge Navigation for Virtual Vehicles - Gomez, Julian E|
A virtual vehicle is a digital model of the knowledge surrounding a potentially real vehicle. Knowledge consists not only of the tangible information, such as CAD, but also what is known about the knowledge - its metadata. This paper is an overview of technologies relevant to building a virtual vehicle, and an assessment of how to bring those technologies together.
Keywords: TURBOFAN ENGINES; EXHAUST GASES; GAS TEMPERATURE; SYSTEMS HEALTH MONITORING; ENGINE CONTROL; OPTIMAL CONTROL; LINEAR PARAMETER-VARYING CONTROL; NEURAL NETS; DETERIORATION; FEEDFORWARD CONTROL; LIAPUNOV FUNCTIONS
|mit :: whirlwind :: R-series :: R-184 Computer Experience in Extending Tube Life Apr50|
From the bitsavers.org collection, a scanned-in computer-related document.mit :: whirlwind :: R-series :: R-184 Computer Experience in Extending Tube Life Apr50
Keywords: tubes; tube; cathode; deterioration; voltage; current; interface; circuit; heater; waveform; cathode circuit; plate current; mechanical defects; tube life; heater voltage; production lot; grid voltage
|PERFORMANCE OF PENTABORANE, PENTABORANE - JP-4 FUEL MIXTURES, AND TRIMETHYLBORATE AZEOTROPE FUEL IN A FULL-SCALE TURBOJET ENGINE - Breitwieser, R.|
Full scale turbojet engine testing of fuels - pentaborane-jp-4 mixtures and trimethylborate azeotrope performance
Keywords: AZEOTROPES; TURBOJET ENGINES; BORATE; FUEL TESTING; JP-4 JET FUEL; METHYL; PENTABORANE; TURBOJET ENGINE; BORATES; DETERIORATION; ENGINE TESTS; FUEL TESTS; FUELS; JP-4 JET FUEL; METHYL COMPOUNDS; PENTABORANES
|THE AUTOIONIZATION EFFECT AND ITS INFLUENCE ON THE INTENSITY OF CERTAIN STAR SPECTRA LINES - NIKITIN, A. A|
CONSIDERS CONSEQUENCES OF RADIATIONLESS TRANSITIONS (AUTOIONIZATION) IN A STAR SHELL AND THE EFFECT OF THE RESULTING IONIZATION ON CERTAIN SPECTRAL LINES.
Keywords: FLIGHT CHARACTERISTICS; DETERIORATION; STATIC STABILITY; LONGITUDINAL STABILITY; LATERAL STABILITY; SUBSONIC SPEED; LATERAL CONTROL; STATIC TESTS; DYNAMIC TESTS; ANGLE OF ATTACK; AILERONS
|BSTJ 30: 4. October 1951: Deterioration of Organic Polymers. (Biggs, B.S.)|
Bell System Technical Journal, 30: 4. October 1951 pp 1078-1102. Deterioration of Organic Polymers. (Biggs, B.S.)
Keywords: oxidation; polymers; rubber; chain; polymer; antioxidant; organic; deterioration; oxygen; cellulose; free radicals; free radical; organic polymers; natural rubber; bell system; molecular weight; organic compounds; chain scission; system technical; cellulose acetate
|A Size Effect on the Fatigue Crack Growth Rate Threshold of Alloy 718 - Garr, K. R.|
Fatigue crack growth rate (FCGR) tests were conducted on Alloy 718 in the solution annealed and aged condition at room temperature. In each test, the FCGR threshold was measured using the decreasing (Delta)K method. Initial testing was at two facilities, one of which used C(T) specimens with W = 127 mm. Previous data at the other facility had been obtained with specimens with W = 50.8 mm. A comparison of test results at R = 0.1 showed that the threshold for the 127 mm specimen was considerably h...
Keywords: CREEP ANALYSIS; AUGMENTATION; VIABILITY; SCALARS; RELIABILITY; REGRESSION ANALYSIS; PREDICTION ANALYSIS TECHNIQUES; NONLINEARITY; LIFE (DURABILITY); HIGH TEMPERATURE; FAILURE MODES; CREEP PROPERTIES; CRITERIA; CERAMICS; CAVITATION FLOW; CONTINUUM MECHANICS; DAMAGE; FINITE ELEMENT METHOD; DETERIORATION; DEFORMATION
|A review of nuclear thermal propulsion carbide fuel corrosion and key issues - Pelaccio, Dennis G.|
Corrosion (mass loss) of carbide nuclear fuels due to their exposure to hot hydrogen in nuclear thermal propulsion engine systems greatly impacts the performance, thrust-to-weight and life of such systems. This report provides an overview of key issues and processes associated with the corrosion of carbide materials. Additionally, past pertinent development reactor test observations, as well as related experimental work and analysis modeling efforts are reviewed...
Keywords: AGING (MATERIALS); ACCELERATED LIFE TESTS; AIRCRAFT SAFETY; CIRCUITS; COSTS; ELECTRICAL FAULTS; HUMIDITY; NAVY; SCHEDULING; TEMPERATURE EFFECTS; AIRCRAFT MAINTENANCE; DETERIORATION; ELECTRIC WIRE; ELECTRICAL INSULATION; KAPTON (TRADEMARK); RELIABILITY; SERVICE LIFE; WIRING
|A Study of Scaling for Intercycle Ice Accretion Tests - Anderson, David N.|
The Ruff method with matched scale and reference velocity was used to determine appropriate 1/2-scale test conditions to simulate a full-size icing encounter for an NACA 23012 wing section protected with a pneumatic boot deicing system. Intercycle ice accretions were recorded on a 36-in-chord model used to represent 1/2-scale and compared with a hybrid reference model (full-size leading-edge and truncated aft section) representing a 72-in-chord full-size airfoil...
Keywords: FUEL CONSUMPTION; XYLENE; PARAFFINS; ELECTRODES; CRACKS; DETERIORATION; FUEL-AIR RATIO; GASKETS; IGNITION; INLET TEMPERATURE; PORCELAIN; SPARK PLUGS; ENGINE PARTS; CYLINDRICAL CHAMBERS; INTERNAL COMBUSTION ENGINES; AIRCRAFT ENGINES; AIRCRAFT FUELS; BENZENE; TOLUENE